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Firefighting Standards - NFPA 111

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NFPA 111

Standard on Stored Electrical Energy Emergency and Standby Power Systems
NFPA 111 - Standard on Stored Electrical Energy Emergency and Standby Power Systems

1.1.1 This standard covers performance requirements for stored electrical energy systems providing an alternate source of electrical power in buildings and facilities in the event that the normal electrical power source fails. NOTE: For emergency power systems supplied by emergency generators, see NFPA 110, Standard for Emergency and Standby Power Systems. 1.1.2 Systems covered in this standard include power sources, transfer equipment, controls, supervisory equipment, and accessory equipment, including integral accessory equipment, needed to supply electrical power to the selected circuits. 1.1.3 This standard covers installation, maintenance, operation, and testing requirements as they pertain to the performance of the stored emergency power supply system (SEPSS). 1.1.4 Exclusions. 1.1.4.1 This standard does not cover the following: (1) The application of the SEPSS (2) Distribution wiring (3) Systems having total outputs less than 500 VA or less than 24 V or systems less than Class 0.033 (4) Emergency lighting unit equipment (5) Nuclear sources, fuel cells, solar systems, and wind stored-energy systems are not covered by the scope of this document. 1.1.4.2 The following are not within the scope of this standard: (1) Specific buildings or facilities, or both, requiring a stored emergency power supply system (SEPSS) (2) Specific loads to be served by the SEPSS (3) Type, class, or level to be assigned to any specific load (See Section 2.1.)

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